Even Fable is done with Opus' verbosity, auto-appending "reply in under 15 lines"
DaveWoodX · reddit · 2026-09-16
The author noticed that Fable, while orchestrating Opus sub-agents, started adding "Then reply with ONLY (under 15 lines):" to every prompt on its own. The orchestrator independently learned to clamp down on Opus' notoriously verbose output — a funny anecdote that also says a lot about how painful Opus' verbosity was for downstream tooling.
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